Beam Pulses is a prefix that turns up on Main Hand, but only on gear tagged aether_beam. It gives kitBeamPulses: +1 to +1 at its lowest step, +2 to +2 at its best — and you need item level 116 before the best one can appear at all.
It comes up at weight 5 when the game rolls affixes, never doubles up with another affix that does the same job (kitBeamPulses), and it is what puts Pulsing, Reverberating, Redoubled, Unceasing and Unending in an item's name — so you might pick up a Pulsing Wand.
No Unique carries it at a fixed number.
Every step
10 steps · lowest to best
| Tier | Needs item level | Gives | Prefix word | Reads as |
|---|---|---|---|---|
| T1 | 1 | +1 to +1 | Pulsing | Pulsing Wand |
| T2 | 6 | +1 to +1 | Pulsing | Pulsing Wand |
| T3 | 14 | +1 to +1 | Reverberating | Reverberating Wand |
| T4 | 24 | +1 to +1 | Reverberating | Reverberating Wand |
| T5 | 36 | +1 to +1 | Redoubled | Redoubled Wand |
| T6 | 55 | +1 to +1 | Redoubled | Redoubled Wand |
| T7 | 75 | +2 to +2 | Unceasing | Unceasing Wand |
| T8 | 92 | +2 to +2 | Unceasing | Unceasing Wand |
| T9 | 105 | +2 to +2 | Unending | Unending Wand |
| T10 | 116 | +2 to +2 | Unending | Unending Wand |
Where you will see it
17 bases it can land on